Updated mediawiki/extensions
Project: mediawiki/extensions/PageTools  5df02cceb4ca238ccf012aa8ee50e00d65b9cf90

Migrate to JSON i18n

Procedure per https://www.mediawiki.org/wiki/Manual:GenerateJsonI18n.php
with shim.

Change-Id: I9905469798a1d4e1db6e7e87ced5baf906202fec